Fun Addition and Subtraction by Start-On-Tic let your children have a fun time learning, practicing addition and subtraction.

This application has a simple and friendly graphical interface for parents and children / as, with intent to avoid distractions and increase concentration when interacting with it.

Addition and Subtraction Fun, allows you to select the amount of numbers you want in the operation (with rows) and the number of digits of each number (columns); so you can set the desired level of difficulty.

Addition and Subtraction Fun includes a reward system based on medals which encourages children / as and large to overcome and improve its own record, allowing strive each day.

This application has been made for those moments when children / as and adults who want to spend some leisure time encouraging and stimulating concentration easily adapted to every need.

It has a trial mode which activates the mental agility to be stimulated by the acquisition of medals bronze, silver, gold and platinum.

Start-On-Tic wish to bring and incorporate a healthy and smart new technologies to all public favoring encouragement, improvement and learning.